Kingston Technology 1 GB DIMM Memory 2 667 MHz (PC2 5300) 240-Pin DDR2 SDRAM Single (Not a kit) KTD-DM8400B/1G Includes one 1GB module of 667MHz DDR2 Desktop Memory for Dell Replaces Dell 311-5049, A0534020, A0735470, A0913211 Memory designed, manufactured and tested to the specifications of each particular brand name computer system From the industry leader in PC memory 240-pin DIMM type